Type-writing machine



M. E. MELTON.

TYPE WRITING MACHINE.

APPLICATION nuzu mus. ms.

PatentedSept. 30, 1919.

a SHEETS-SHEET M. E. MELTON.

TYPE WRITING MACHINE.

APPLICATION FIlEB "8.26, ms.

Patented Sept. 30, 1919.

3 SHEETS-SHEET 2.

lea... g at Ji 1 W" Hill! m mvzuro R: W

ATTORNEY.

M. E. MELTUN.

TYPE WRTING MACHINE.

APPucmoN mm APRJG. I916.

1 ,3 1 7,209 Patented Sept. 30, 1919.

a SHEETSQ'SHEET 3.

WITNESSES: INVENTOR:

XTORNEY.

UNITED STATES PATENT OFFICE.

MAX ii. neuron, or wnsninemon, msrnrc'r or COLUMBIA, assronon. TO unnnnwoon 'rrrnwmrna oorrrnnr, or new roman. Y., A. conrona'rron or DELAWARE.

mn-warrino Miler-rm.

To all whom it may concern:

Be it known that I, MAX E. Matron, a citizen of the United States, residing in Washington, District of Columbia, have invented certain new and useful Improvements in Type-Writing Machines, of which ing fed alternatively from'one'spool' to the other. 1

A feature of the present invention relates to the compact arrangement of the ribbon mechanism, wherein both the ribbon winding spool and the supply spool are mounted together at one end of the 'pllaten for rotation about a common axis. he spools may be mounted on a common drive shaft, which is geared in a s'imple and convenient manner to the platen'for rbtationby the latter. suitable'clutoh i provided for alternatively connecting the spools to the drive shaft, so that the ribbon may be fed by the line-space rotations of the platen, and the direction of the ribbon feed may be reversed. Means are provided for disconnectin the drive shaft from the platen to permit t e latter to rotate independentl of the ribbon mechanism,

means also sing-provided torotate' said j shaft while: thusdisconnected, for winding the ribbon on either spool;

Another feature of the invention relates to the mounting of the ribbon spools, the drive mechanism therefor, the ribbon guiding and supporting mechanism, all on a frame removably attached to the usual platen frame, whereby the ribbon mech'a nism in its entirety may quickly be removed bodily from the machine.

An inking ribbon may be guided length Wise of the platen along the printing line wheels 21 on the platen axle.

spacing mechanism for rotating the platen back and forth between the several webs, and the ends of theribbon wound on spools sr fi ne e reen- Patcnted Sept. 30, 1919., Application men n niee, 131s. seri'aili'oiilfijfi. i

mounted side by side on a drive shaft connected through a train of gears to the platen axle A clutch device for reversing the direction of the ribbon feed, may comprise a key mounted to slide lengthwise of the drive shaft to connect either spool with the drive shaft while releasin the other spool, whereby the ribbon may e fed from either spool and wound on the other spool.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a part sectional end elevation invention applied thereto.

Fig. 2 is a part sectional elevation on a larger scale, partly diagrammatic, showing the ribbon spools andthe ribbon supporting frame releasably attached to the platen frame.

Fig. 3'is a part sectional front elevation showing particularly the ribbon spools, the driving mechanism therefor, including the reversing clutch, and the means for guiding the ribbon.

Fig. 4 is a similar view of the ribbon spools, but with the clutch reversed.

Fig. 5 1s a fragmentary part sectional perspective view, showing the construction of the ribbon spool and means for connecting it tothe drive shaft.

Fig. 6 is a fragmentary view illustrating the mean for releasably attaching the ribbon spool frame to the platen frame.

Fig. 7 1s a front perspective view showing the ribbon mechanism and the supporting frame for the paper supply rolls.

Fig. '8 is a rear elevation of the machine.

The invention is shown as applied to an Underwood typewriting machine. Keys 10, fulerumed atll, operate through bell cranks 12 to swing type-bars 13 upwardly and rearwardly about a fulcrum 14 and cause the types 15 to strike against the front face of the roller platen 16. The platen axle 17 is ]ournaled in the ends 18 and 19 of the platen frame, the latter also including an inclined paper shelf 20 connecting the frame ends, said shelf located at the rear of the platen for supporting and guiding the work to the platen.

The lineof a typewriting machine, with the present r is, mattress;

i0 line-spite V i 1g. 1), op'rable'to move space levee rearwardly ratohet 7 thereby efi'ect line-space rotations of the laten. The platen frame is mounted on sewerage 26, being shiftable up and down thereon to u er iisd fewvrseasepesitionsi by means of the usual platen shifting mechanism. The carriage is mounted to travel horizontally onfrontand reanguidevrajls 2.7 and 28, and

lbbon mechanism for vibrating a ribbon 38 (Fig. i over the printlng point at each type strokepmay comprise a. ribbon vibra tor 39 through which the ribbon is guided said mechanism being operated in thensual manner. The parts above desoribed gnay be those: ususllt the commercial Underwood typewriting machine.

Means for supplying a number of; Strips or ,webs 46 to the platen may comprise paper supply rolls ll removably mounted on a truck gtg arranged to travel with the car-i riage. ASi'ShO-Wp, the truck comprises a 7,

frame hari 'open rectangular. frame ends 43 connect by tie rods lextendinglbetween the corners of the, frame; ends. The: skeleton f ame thus constructed is strong and rigid and weight and has little .inertia,= so it at it, does not materially impede the letter-feed movements of the carriage, V r

The rolls 41 are supported'between plates 45 mounted on the rods 44: and adjustable lengthwise: of the rods, permittingadjustment 5 of said plates to 7 rolls of 'difierent lengths, and also per nittingadjustment of the rolls to any desired position lengfthwise of'the' platen; The rods dtfmay extend through collars 46 fixed to i saiid plates, and be provided with set screws 47 by which the; plates may be clamped in theiradiusted" positions on saidrods. The paper rolls 41: may bemounted on spools or'cores 148% (Eli -z 8). Each spool is providedrat each end with a central bore or socket to receive stnb shafts 49. on which the spool is journaled;

said shafts49 being mountedgfor endwise movement in the plates i5, into and out of Ha s? dr n at t e mifinal is di t in,

frame relative to the. platen *vented. The webs are thus maintained in a swee s, se f is flnay be slidable cndwise in bearing sleeves 5O fixed in the plates 45 and each provided may be locked in its spool-holding position. i i itli this construction any roll may be quickly placed in position or removed Witlioiit "interference with the other rolls.

The roll holdipg. frame or truck is arranged to travel with the carriage 26, so that the rolls maybe maintained in operative relation to the platen Fol-this purpose the truck 42 isinounted to travel on a track comprising an angle-bar 53 located behind the main frame 54 of the machine. Said. track is reniova'bly mounted on the machine frame by means of brackets 55 which are rigidly connected with the rail 53 by horizontal arms 56. The track may be removed; from the machine by simply lifting the brackets 55' off the machine frame- Thaweight of the roll-holding frame is supported on truck wheels 57 which run on the track 53; Said wheels are prevented from mo ving rearwardly off the trackby a; guard rail;58.' Horizontal guide rolls 59 are arrangeito run on the vertical member of the angle-bar 53. V

The roll-holding frameAQ is connected :to the typewriter carriage by arms 60, which maybe pivotedat61 to the upper rear corner of the frame, said arms extending forwardly and downwardly from their pivots, and being provided at their forward ends with hooks 62 to engage a. shaft 63, which forms part of an Underwood carriage. The hooks 62 may be held against outward movement lengthwise of the shaft 63 by sleeves 64 on said shaft, and are also rigidly held against inward movement along said Shaft as they bear against the ends 43 of the rollffralne, That isto say, the arms 60 are securely held against emdwise play or movement in either'direction relative, to the roll frame, and endwis'e movement o-fthe roll is also pre position normal to the platen.

The webs of paper from the rolls 41 are led forward over the rolled orbeaded upper edge 65 of the paper shelf "20, which serves as an assembling guidefor thewebs, the lat ter being directeddownward over the paper table and between the platen and the rear and front feed rolls 66 and 67, and thence upwardly past the printing line. The rib-- b01138, above referred to, may serve for printing on the outer web, or on a. work-sheet Fhich may overliejthe webs at the printing 1 The novel ribbon mechanism comprised in the present invention -vvi1l now be described. Ribbon spools 68 and 69 are'mounted on a ribbon spool drive shaft 70 and are alternatively connected to said shaft to be driven thereby through a reversing clutch, as hereinafter described. The drive shaft is rotatably mounted in the ends 71 and 72 of the ribbon supporting frame, which is removably mounted on the platen frame.- The frame ends 71 and 72, as shown are each provided with inturned horizontal portions 7 3 which rest on horizontal portions'i of the platen frame. The forward, end of each horizontal portion 73 is provided with a depending web 75. The web 75 at the righthand end of the platen frame, is formed in tegral with an upright ribbon guiding plate 7 6, just in front of the right-hand end of the platen. The left-hand web 75 likewise carries a ribbon guiding plate 7 7 projectlng downward in front of the left-hand end of the platen. Said guide plates 76 and 7 7 are connected by a horizontal bar 78 rigidly uniting the ends 71 and 72 of the ribbon sup porting frame. Said frame ends are further supported and braced by a tie rod 80 fixed at its ends tosaid frame ends.

An inking ribbon 81 extends downwardly from the spool 68 and through an opening 82 in the guide plate 77, said opening having a diagonal edge 83 for guiding and changin the direction of the ribbon, a length a of which extends from said opening in a horizontal lead along the surface of the platen at the printing line to an opening 84: in the guide plate 76 and around a guide roll 85 mounted at said opening. From thence a length 5 of the ribbon extends back in a horizontal lead to a guide roll 86 in the plate 77, the ribbon continuing around said roll, thence a length 0 extends along the platen in a lead in front of the length a to a guide roll 87 in the plate 76, thence a length d extends to the left along the platen in frontofthe length 0 to a diagonal guiding edge88 in the plate 7 7, from which the ribbon leads upwardly to the spool 69.

The several webs of paper 40 are interleaved with said lengths of ribbon, so that one length of ribbon overlies each web for printing thereon. The paper webs and the ribbon are held close to the platen along the printing line. To assist in holding the webs and ribbon close together and against the platen, ribbon guides 89 areprovided in the form of hooks depending from the bar 78 on which they are slidably mountedfor adjustment lengthwise of the platen, so that said guides may be adjusted to correspond to the position and width of the webs of paper.

wardly to permit the ribbon to be positioned in or removed from the guides.

The ribbon-supporting frame is removably mounted on the platen frame and may be secured in position thereon by means of locking bars 91. Said locking bars are slidably mounted on the horizontal portions 73 of the ribbon spool frame by means of headed studs 92 (Figs. 2 and 6), fixed in said frame portions, the locking plates 91 being formed with slots 93 through which said studs extend. Studs 91 are secured to the platen frame for holding the ribbon spool frame in position. The studs 94: project through o )enings 95 in the spool frame and openings 96 in the locking plate 91, said openings 95, 96 being brought in register by sliding the plate 91 forward to the Fig. 6 position. When the spool frame is placed on the platen frame, heads 97 on the studs 94: project upwardly above the locking plate so that when the latter is moved rearwardly, restricted portions of the openings 96 are brought beneath said heads 97, thereby locking the frames together. It will be seen that with this construction the ribbon spool frame, together with the ribbon spools, the

ribbon and its guides, may be bodily removed from the machine by simply drawing the locking bars 91 forward by means of the finger pieces 100 and then lifting the ribbon mechanism oil the platen.

The spool winding shaft 70 is driven from the platen by means of a gear train, comprising a gear 105 fixed to the platen axle, a gear 107 keyed to the shaft 70, and an idler pinion 106 running in mesh with said gears. The shaft 70 is thus rotated in the same direction as the platen. In order to disconnect the ribbon spool drive shaft from the platen, the pinion 106 is mounted to shift in the direction of its axis on its shaft 108, to the dotted-line position, Fig. 4, out of mesh with the gears 105 and 107. The pinion 106 is held in either of said positions by a springpressed detent 109, which seats in annular grooves 110 in the shaft 108.

The ribbon spools are alternatively connected to be driven by the shaft 70, by means of a reversing clutch comprising a key 111 slidably mounted in a slot or key-way 112 extending longitudinally in an enlarged portion 113 of the drive shaft. The key 111 is connected by a web 114 with a stem 115 extending along the axis of the shaft 70, said stem provided with a handle 116 for moving the stem lengthwise of theshaft. The key 111 is provided with a lug or bit 117 adapted to project into any one of a number of slots 11% provided in the inner faces of the hubs of the ribbon spools. When the lug 117 is in one of said slots, the corresponding spool is locked to the shaft to be driven thereby, while ,the other spool is free to rotate relatively to the shaft, as the key, ex-

copt for the projectinlug 117, lies wholly within the outline of t e drive shaft.

Between the two ribbon s ools is a collar 119 keyed to the drive she 13, which collar is provided with a slot or guideway in which the lug 117 slides. The collar 119, being wider than the lug 117, serves to space the spools and also to prevent the key 111 from engaging both spools at once, thus relieving them of the strain which would otherwise be placed thereon. The key 111 is held in either of its normal positions by a springpressed detent 120 adapted to seat in suitably positioned recesses or notches in the stem 115. Each ribbon spool is prevented from rotating too freely and causing slack in' 'the ribbon, when running idly on the shaft, by means of a tension device comprising-a rack or toothed wheel 121 fixed to the spool, and a detent 122 having a stationary mounting and yieldingly held in contact with the rack 121 by a spring 123. Said detent 122 and spring 123 may be mounted on the inner face of a guard plate or disk 121, the latter provided with a hub 125 by which it is mounted on the drive shaft, and a peripheral flange 126 projecting toward the adjoining ribbon spool flange. Each of the plates 12-1 is provided with an extension 127 having an openin through which the tie rod 80 extends, wher y said plates are prevented from rotating. The plates 124 may "be adjusted lengthwise of the drive shaft, so that the flanges 126 fit closely against the spool flanges, providing inclosing casings for the tension devices, and may be locked in adjusted position by means of set screws 128. Movement of the ribbon spools along the shaft is thus prevented.

With the parts in the position shown in Fig. 3, the outer ribbon spool 68 is keyed to the drive shaft, so that at each line-space rotation of the platen, the spool 68 is rotated throu h a smallangle to wind a portion of the ri on thereon, an equal portion being unwound from the other spool. When it is desired to reverse the direction of the ribbon-feed the key 111 is shifted to the Fig. 4 position by pressing inwardly on the'h-andle 116, thus disconnecting the spool 68 and connecting the spool 69 with the drive shaft. During this shifting operation, it may be necessary to rotate the spool 69 through a small angle to bring one of the slots 118 therein into register with the lug 117. Said slots118 may be spaced at short intervals, as indicated in Fig. 5, so that-at most a small rotation of the spool is required at any time in reversing the connections. A hand crank 129 is provlded on the drive shaft for winding the ribbon by hand on either spool, the pinion 106 being shifted to the dotted-line position in Fig. 4 when it is desired to wind the ribbon by means of a crank.

Variations may be resorted to within the scopeof the inveatiea; mid-portions of the 1m rovemeras maybe used without others.

'avirlg thus described my "invention, I clailn:

1. The ty ewntin 'flialihi'nathecombination with a re'volnld e platenfof means for supporting and guiding an inking ribbon extending lengthwise of the platen over the printing hnem a plurality of leads, ribbon spools on which theme 'of the ribbon are wound, a drIve'shai-t on which the spools are mounted side side, means for alternately connecting the "spools to be driven by said shaft, and a 1' tr'aiii connecting the platen and-the sail rive shaift, comprlsing gears secured to the plalten and drive shaft, respectively, and "an intermediate gear shiftable into and out of position to transmit motion from the laten'to the drive shaft.

2. In a typew tih rnachine, thecombinatron with a revolt] e platen, of a ribbon w nding spool, a drive shaft for rotating said spool, gears connected, respectively, to the said drive shaft airid the latch axis, and an intermediate I inion s'hi table on its axis into and out 0% position to transmit motion from one to the other of said gears.

3. Inna typewriiiing'maiilfi iie,the" combination with a platen was platen frame, of a second frame comprising a drive shaft adapted to be detachablyhioiinted on said platenframe, ribbonspools mounted side by side on said shaft, and a key slfifta'bly mounted on said shaft for movement into positions for aiternately locking said spools to the drive shaft.

4. In a typewriting machine,the combination with a travel? carriage and a drive shaft thereon, of winding spools mounted adjacent each other thereon, said shaft having a key w'ay therein, a key slidablelon udhrall 0'1 fihesha f-t in said key- Way, 'sai spools lilting h'ubis fanned with slots extendlir'g anagnmss ar'tnsshaft, said lrey-l'ramngapro 1o ,weans fur slnfe mg said key 'md ve g imoesgag; ment'wi-th atslotofeithersjiool ahd there y lock the spool to sash, and a speeding col'lar keyed were dflvtsslmft Between sat s pdls, map-fended with a 'key way for sald' luggso thaitsaid sonar my hold" said lug clear of either H 5. Inatype" g'inabhinathecombihation atnavel'ing carriage, of a ribhbn spool driving shaft' 'on said carriage '-pro-' vided with a central' bow extending longitudinall thereof, swiid shaft formed with a radial s otbxtend'img from said *bore tothe periphery of shaft, :1; key finger-piece having a stem' -slikiarblyaaounted insets bore, said 'keiyl-slidablei'ir radgal'glot 'igd having-a gipa'oiec on t 'esu aeeof the shaft, and 'i'iiibgm s pools mounted Side by sideonsa idshaft and formed Witlr'l gulldways in: the hubs thereof into which said lib lug may be alternately shifted, thereby alternately connecting the spools to be driven by said shaft.

6. In a typewritin machine, the combination with a platen, o, line-spacing means for rotating the platen, ribbon spools located at one end of the platen, means for guiding a ribbon from one spool to the printing line of the platen, and thence lengthwise of the platen back and forth in a plurality of leads, and to the other ribbon spool, a drive shaft on which said spools are mounted, mechanism, at the end of the platen adjacent said spools, operated by said line-spacin means to drive said shaft, and means to re easably connect each spool to be driven by said shaft.

7. In a typewriting machine, the combination with a platen frame and a revoluble platen therein, of ribbon spools on one end of said frame having a common axis of rotation, means for guiding a ribbon from one spool over the printing point and back to the other spool, line-spacing means to ro-- tate the platen, mechanism for transmitting motion from said line-spacing means to said spools, and means for alternatively disconnecting said spools from the line-spacing means.

8. In a typewriting machine, the combination with a revoluble platen, of ribbon spools having a common axis of rotation, means for guiding a ribbon from one spool over the printing point and back to the other spool, line-spacing means to rotate the platen, mechanism for transmitting motion from said line-spacing means to said spools, means for alternatively disconnecting said spools from the line-spacin means, means for concomitantly disconnectlng both ribbon spools from the line-spacing means, and a device for rotating said spools independently of the line-spacing means.

9. In a typewriting machine, the combination with a platen and platen frame, of a ribbon-spool supportin frame removably mounted on the platen frame, lockin studs on one of said frames, and a locln'n ar on the other frameshiftable into an out of position to lock the said supporting frame to the platen frame.

10. In a typewriting machine, the combination with a platen frame and a platen, of a ribbon-spool supporting frame removably mounted on the platen frame, said supporting frame having portions resting on the platen frame ends, locking studs on the platen frame ends havin heads projected through openings in sai portions of the supporting frame, and locking bars mounted on said supporting frame and slidabie thereon into and out of locking enga ement with the heads on said studs for ocking the frames together. 7

11. In a typewriting' machine the combi- 'the platen frame, said*supportin nation with a platen frame and a platen mounted thereon, of a ribbon-spool sup orting frame, having frame ends at the en s of frame comprising a bar extending lengt Wise of the platen and rigidly uniting said frame ends, and ribbon guide plates depending from said bar and comprising means for supporting and guiding a ribbon extending lengthwise of the platen along the printing line in a plurality of leads.

12. In a typewriting machine, the combination with a platen frame and a platen mounted thereon, of a ribbon-spool supporting frame, having frame ends at the ends of the platen frame, said supporting frame comprising a bar extending lengthwise of the platen and rigidly uniting said frame ends, ribbon guide tes depending from said bar and comprising means for supporting and uiding a ribbon extending lengthwise of t e platen along the printin line in a plurality of leads, and ribbon gui es slidably mounted on said bar and adjustable therealong.

13. In a typewriting machine, the combi nation with a platen, of a ribbon-spool supportin frame, ribbon spools mounted thereon, sai frame having means for guiding a. ribbon from one spool to the printinglme and back and forth along the printing line in a plurality of lengths andto the other ribbon spool, said frame comprising a bar extendin lengthwise of the laten and connecting file frame ends, an ribbon guides slidably mounted on said bar for adjustment lengthwise of the platen, said guides arranged to engage said lengths of ribbon and hold them together and close to the platen along the printing line.

14. In a typewriting machine, the combination with a rotary platen, of means for supporting and guiding an inking ribbon extending in a plurality of len hs along the platen atthe printing line, a ar extending lengthwise of the laten above said lengths of ribbon, and riblibn supportin and 'ding hooks depending from said ar an arranged to support said lengths of 'ribbon and prevent them from sagging, and also hold them compactly along the printing line.

15. In a typewritingmachine, the combination with a rotar platen, of means for supporting and guiding an inking ribbon extending in a plurality of lengths along the platen at the printing line, a bar extending lengthwise of the platen above said lengths of ribbon, and ribbon supportin and guiding hooks depending from said at and arranged to support said lengths of ribbon .125 and prevent them from sagging, and also hold them compactly along the printing line, the hooks having ofl'set portions to overlie the upper edges of the ribbon and thereby prevent the ribbon from being aeaso cidentally disgilaced or dragged upwardly out Qfthe hooks ,y the advancing work-pieces. 16, Inatypewriting machine, the combi nation with a laten and a platen frame, of i l supporting frame adapted to be eta supported on said platen frame, a, drive shaft thereon, ribbon spools mounted side b side on said drive shaft ad jacent one end of the spool frame, said havin ribbon guides at opposite ends of the rame by which the ribbon is aided in a. plurality of leads back and orth between the frame ends, and a single set, of gearing on said spool frame ada ted to be. geared to the platen to drive oth spoo 17. line, typewriting.v machine, the combination, with a l ter! and a platen frame, of ribbon, spoo s located adjacent to each otheron, one end. of the platen frame, means for guiding a ribbon from one spool to the printing line of the platen, and thence lengthwise of the platen and back, and thence to the other ribon spool, so that the same ribbon serves for two work-sheets. said spools mounted on a common drive-shaft, means for alternatively connecting said spools to be rotated by the drive-shaft, a gear on said drive-shaft, a gear fast to the platen, and a pinion between said gears for drivin one by the other.

18. aftypewriting-machine, the combination. with a revoluble platen and a frame in which. it is mounted, of a second frame detachahly connected to said platen frame, said second frame includin means for supporting and iding an in ing ribbon extending lengt wise of the platen, over the printing line in a plurality of leads, ribbon spools on which the ends of the ribbon are Wound, a drive-shaft on which the spools are mounted side by side, means for alterna tively connecting the spools to be driven by said shaft, nd a gear train connecting the platen andv e dnive-shaftcomprisin a gear secured to the platen, a gear secured to the driyashaft and an intermediate ear journaled'on said second frame and shiftable on saidframe i and out of position to transmit motion cm the platen to the driveshaft.

1%). In a typewriting machine, the combination. with a. revoluble platen and a frame in which, it is mounted, of a second frame detachably secured to sald platen frame, said 'secondframe com rising a ribbon-winding spool, a'drive-sha for rotatingsaid spool, and a gear connected to said drive-shaft for rotatingisaidaspool, there being also a car secured to 'the platen, and an interme late pinion 'ournaled on said detachable frame andshi a bleon its axis on said frame, into and out et positionin transmit motion from one to the other o f said gena s.

29,11; a typewritmg maehim, the combs nation with a platen frame and a platen journaled therein, of a second ribbon-spool supporting frame dctachably supported on, said platen frame, said second frame having frame ends at the ends of the platen frame and comprising a bar extending lengthwise of the platen and rigidly uniting said frame ends, ribboi'i-guide plates depending from said bar and comprising means for supporting and guiding a ribbon extending lengthwise of the platen along the printin line in a plurality of leads, and ribbon-guides slidably mounted on said bar and adjustable therealong.

21. In a typewriting machine, the combination with a platen and a platen frame, of a second ribbon-spool supporting frame detachably supported on said platen frame, ribbon spools mounted thereon, said second frame having means for guiding a ribbon from one spool to the printing line and back and forth along the printing line in a plurality of lengths and to the other ribbon spool, said second frame comprising a bar extending lengthwise of the platen and connecting the frame ends, and ribbon-guides slidably mounted on said bar for adjustment lengthwise of the platen, said guides arranged to engage said lengths of ribbon and hold them together and close to the platen along the printing line.

22. In a typewriting machine, the combination with a platen frame and a platen journaled therein, of a second ribbon-spool supporting frame detachably supported on sald platen frame, said second frame having frame ends at the ends of the platen frame and comprising a bar extendinglengthwise of the platen and rigidly uniting said frame ends, and ribbon-guide plates supported from said her and comprising means for supporting and guiding a ribbon extendin lengthwise of the platen along the printing line in a plurality of leads.

23. In a typewriting machine, the combination with a platen and a platen frame, of a second ribbon-spool supporting frame detachably supported on said platen frame, said second frame including means for supporting and guiding an inking ribbon extending in a plurality of lengths along the platen at the printing line, a bar extending lengthwise of the platen above said lengths of ribbon, and ribbon-supporting and guiding hooks depending from said bar andarranged to sup ort said lengths of ribbon and prevent t em from sagging and also hold them compactly along the printing line.

24. In a typewrlting machine, the combination with a platen and a platen frame, of a second ribbon-spool suporting frame detachably supported from said platen frame, said second frame including means for su porting and uidmganinkin ribbon eaten ingin-a 'plurglityo 1 smiths a 0115 the t MAX E. MELTON.

platen at the printing line, a, bar extending lengthwise of the platen above said lengths of ribbon, and ribbon-supporting and guiding hooks depending from said her and airrunged to support said lengths of ribbon and prevent them from sagging and also hold them oompactly along the printing line, the hooks having ofi'set portions to overlie the Witnesses:

EDWIN G. J AMES,

GEORGE G. WARD.

Copies 01' this patent may be obtained for five cents eaoh, by addressing the "Commissioner of Patents, Washington, D. 0. 

